Flowserve LNN Bedienungsanleitung PDF herunterladen (Seite 5)

LNN, LNNV, LNNC USER INSTRUCTIONS ENGLISH 71569074 06-14

Page 5 of 56 flowserve.com

If the conditions of service on your purchase order are

going to be changed (for example liquid pumped,

temperature or duty) it is requested that the user seeks

the written agreement of Flowserve before start up.

1.6 Safety

1.6.1 Summary of safety markings

These User Instructions contain specific safety markings

where non-observance of an instruction would cause

hazards. The specific safety markings are:

This symbol indicates electrical safety

instructions where non-compliance will involve a high

risk to personal safety or the loss of life.

This symbol indicates safety instructions where

non-compliance would affect personal safety and could

result in loss of life.

This symbol indicates “hazardous and toxic fluid”

safety instructions where non-compliance would affect

personal safety and could result in loss of life.

This symbol indicates safety instructions

where non-compliance will involve some risk to safe

operation and personal safety and would damage the

equipment or property.

This symbol indicates explosive atmosphere

zone marking according to ATEX. It is used in safety

instructions where non-compliance in the hazardous

area would cause the risk of an explosion.

This symbol is used in safety instructions to

remind not to rub non-metallic surfaces with a dry cloth;

ensure the cloth is damp. It is used in safety

instructions where non-compliance in the hazardous

area would cause the risk of an explosion.

This sign is not a safety symbol but indicates an

important instruction in the assembly process.

1.6.2 Personnel qualification and training

All personnel involved in the operation, installation,

inspection and maintenance of the unit must be qualified

to carry out the work involved. If the personnel in question

do not already possess the necessary knowledge and

skill, appropriate training and instruction must be provided.

If required the operator may commission the

manufacturer/supplier to provide applicable training.

Always coordinate repair activity with operations and

health and safety personnel, and follow all plant safety

requirements and applicable safety and health laws

and regulations.

1.6.3 Safety action

This is a summary of conditions and actions to

prevent injury to personnel and damage to the

environment and to equipment. For products used

in potentially explosive atmospheres section 1.6.4

also applies.

NEVER DO MAINTENANCE WORK

WHEN THE UNIT IS CONNECTED TO POWER

GUARDS MUST NOT BE REMOVED WHILE

THE PUMP IS OPERATIONAL

DRAIN THE PUMP AND ISOLATE PIPEWORK

BEFORE DISMANTLING THE PUMP

The appropriate safety precautions should be taken

where the pumped liquids are hazardous.

FLUORO-ELASTOMERS (When fitted.)

When a pump has experienced temperatures over 250 ºC

(482 ºF), partial decomposition of fluoro-elastomers

(example: Viton) will occur. In this condition these are

extremely dangerous and skin contact must be avoided.

HANDLING COMPONENTS

Many precision parts have sharp corners and the

wearing of appropriate safety gloves and equipment is

required when handling these components. To lift

heavy pieces above 25 kg (55 lb) use a crane

appropriate for the mass and in accordance with

current local regulations.

THERMAL SHOCK

Rapid changes in the temperature of the liquid within

the pump can cause thermal shock, which can result in

damage or breakage of components and should be

avoided.

NEVER APPLY HEAT TO REMOVE IMPELLER

Trapped lubricant or vapor could cause an explosion.

HOT (and cold) PARTS

If hot or freezing components or auxiliary heating

supplies can present a danger to operators and

persons entering the immediate area action must be

taken to avoid accidental contact. If complete

protection is not possible, the machine access must be

limited to maintenance staff only, with clear visual

warnings and indicators to those entering the

immediate area. Note: bearing housings must not be

insulated and drive motors and bearings may be hot.

If the temperature is greater than 80 °C (175 °F) or

below -5 °C (23 °F) in a restricted zone, or exceed

local regulations, action as above shall be taken.

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